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Chapter 2: Q2. (page 112)

Evaluate the expression. Justify each of your steps.

15-74

Short Answer

Expert verified

Value of given expression is -420.

Step by step solution

01

Step-1- Concept of commutative property and associative property of multiplication

The commutative property is a math rule says thatthe order in which we multiply numbers does not change the final product.

A脳B=B脳A

The associative property of multiplication statesthat the product of three or more numbers remains the same regardless of how the numbers are grouped,

A脳B脳C=A脳B脳C.

02

Step-2-Evaluating given expression

15-74

On simplifying, we get,

15-74=15-74.

Using Commutative property,

15-74=-7154.

Using associative property,

15-74=-715415-74=-76015-74=-420

03

Step-3-Conclusion

Therefore, the value of given expression is -420.

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